Precalculus Examples

$f (x) = 2^{x}$ ; find $f (\frac{5}{2})$

Step 1

Replace the variable $x$ with $\frac{5}{2}$ in the expression.

$f (\frac{5}{2}) = 2^{\frac{5}{2}}$

Step 2

Remove parentheses.

$2^{\frac{5}{2}}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$2^{\frac{5}{2}}$

Decimal Form:

$5.65685424 \dots$